HUAWEI ME909 Series Mini PCIe Module |
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Hardware Guide | Description of the Application Interfaces |
PIN | Pin Name |
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No. | Mini PCI | HUAWEI Pin |
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| Min. | Typ. | Max. |
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| Express | Description |
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| Standard |
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46 | LED_WPAN# | NC | - | Not connected | - | - | - |
47 | Reserved | PCM_DOUT | O | PCM I/F data out | 1.8 | 2.1 | |
48 | 1.5 V | NC | - | Not connected | - | - | - |
49 | Reserved | PCM_DIN | I | PCM I/F data in | 1.8 | 2.1 | |
50 | GND | GND | - | Ground | - | - | - |
51 | Reserved | PCM_SYNC | O | PCM interface sync | 1.8 | 2.1 | |
52 | 3.3Vaux | VCC_3V3 | P | 3.3 V DC supply rail 3.0 | 3.3 | 3.6 |
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| from the PC side. |
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P indicates power pins; I indicates pins for digital signal input; O indicates pins for digital signal output. AI indicates pins for analog signal input.
The Reserved pins are internally connected to the module. Therefore, these pins should not be used, otherwise they may cause problems. Please contact with us for more details about this information.
The NC (Not Connected) pins are floating and there are no signal connected to these pins. Therefore, these pins should not be used.
3.3Power Sources and Grounds
For the Mini PCIe Adapter, +3.3 Vaux is the only voltage supply that is available. The input voltage is 3.3 V±9%, as specified by PCI Express Mini CEM Specifications 1.2.
Table
Pin No. | Pin Name | Minimum | Typical | Maximum |
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2, 24, 39, 41 and 52 | VCC_3V3 | 3.0 V | 3.3 V | 3.6 V |
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4, 9, 15, 18, 21, 26, 27, | GND | - |
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29, 34, 35, 37, 40, 43, |
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and 50 |
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To minimize the RF radiation through the power lines, it is suggested to add ceramic capacitors of 10 pF and 100 nF in the power lines beside the Mini PCIe connector on the host side.
| Huawei Proprietary and Confidential | 14 | |
Issue 0.1 | Copyright © Huawei Technologies Co., Ltd. | ||
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